Sellers

What a Listing Agent Actually Does: A Massachusetts Seller's Guide for 2027

By Mike DelRose Jr., REALTOR^®

Published September 14, 2026

The short version

• Pricing is the whole ballgame, and it is the one decision you cannot take back. One in four sellers across our core towns had to cut their price last year. Among homes that sold in two weeks, one in a hundred did. My job is to put you in the first group before the sign goes in the yard.
• I read the market ahead of the data, not out of it. Sold reports run 60 to 90 days behind. When the market turns, I see it in showing traffic and offer behavior weeks before it shows up in a report, and I reprice while there is still time for it to matter.
• Marketing is not photographs. It starts with what your house is worth today, what should be done to it before anyone sees it, and which buyer this specific home is genuinely right for. The photos come last.
• An offer is not only a number, and I make sure you can see the rest of it. Timing, deposit, financing type and contingencies all carry value, and buyers and sellers weigh them very differently. I walk you through what each one is actually worth to you.
• I keep deals together when tempers get short. Transactions come apart over small things far more often than over money. Managing that is a skill, it never shows up in anyone's sales statistics, and it is the reason agents on the other side pick up my calls.
• After the offer is accepted, a dozen things have to happen on other people's schedules. Inspectors, appraisers, the fire department, two attorneys and a lender. We run that sequence continuously. You would be learning it once, under a deadline.
• The rules changed, and I keep you on the right side of them. Last year I had to tell a buyer's agent three separate times that the offer they submitted was one my seller could not legally accept.
• Time is the most expensive thing in a transaction. Holding a $1,000,000 Greater Boston home runs about $238 a day. A 5% price reduction costs the same as carrying that house for thirty weeks.
• The gap between a good agent and an average one is wider than the gap between having one and not. So ask any of us for our numbers. Mine are at the bottom of this article.

First, the stereotype

I know what a lot of people picture. A blazer, a magnetic car sign, a headshot taken during a different presidential administration, and someone who unlocks a door and says "and here we have the kitchen."

Fair enough. There are agents like that. Every industry has a version of the guy who does the minimum and calls it a career, and ours is easier to enter than most.

I am writing a separate piece on why that reputation got earned over several decades, and on the work that has gone into changing it. Industry practice has moved, the legal framework has moved with it, and a lot of people inside this business pushed hard for both. That story deserves its own article rather than a paragraph here.

So the question worth asking is not whether real estate agents in general earn their fee. It is what a good one actually does, and whether that work is worth what it costs. That is a fair question and it deserves a real answer, so here is mine, with the numbers I use to run my own business.

What happens when the price is wrong at launch

Here is the statistic that should shape how you think about all of this.

Across 3,071 residential sales in Arlington, Belmont, Cambridge, Newton, Waltham and Watertown over the last twelve months, 24% of sellers had to reduce their asking price. One in four.

That number is not spread evenly. It depends almost entirely on whether the price was right when the home went live.

One percent against seventy-one percent.

Price a home where buyers actually are and you almost never touch it again. Miss, and you are cutting, and by then you are negotiating from a listing that has been sitting where every agent in the state can see it.

The right-hand column is the cost. Ten and a half points between the top row and the bottom. On a million dollar home that is roughly $105,000.

Those are not different houses. They are the same kind of house, in the same towns, in the same year, launched at different prices.

Twenty-one percent of sales took more than sixty days.

So how does a seller end up in the wrong row? Almost never by being careless. It happens because the information available to them is out of date, incomplete, or does not describe their house.

An owner looks at what the neighbors got. Those sales closed three months ago and were priced three months before that. They pull an online estimate, which is built on public record and cannot see that their kitchen was redone or that the comparable four streets over has a finished basement theirs does not. They add something for the work they put in, which is reasonable and which buyers frequently do not pay for. Every one of those inputs points the same direction, and it is up.

What I do is sit between you and that number. I price against sales I can actually see the inside of, adjusted for condition rather than square footage alone. I tell you which of your improvements the market will pay for and which ones it will not, and that second conversation is usually the harder and more valuable one. Then I tell you what I think happens at each of three or four price points, and you make the call with the reasoning in front of you.

I have talked sellers down and I have talked sellers up. What I have not done is let one launch at a number I could not defend with sales on paper, because the first two weeks do not come back.

How do you price a home when the data is three months old?

Sold data is a rear-view mirror. A sale that closes in September went under agreement in July and was priced in June. When you read that the market is strong, you are reading about a market that existed a season ago.

That lag is where sellers lose money, and it is not theoretical.

Spring moves fast around here. Inventory clears, buyers compete, and pricing off recent sales works because those sales are still current. Then the market cools, and it cools faster than any report can register. Sellers who price off a hot spring while summer is quietly thinning out end up positioned against a market that has already moved on. Their listings sit while their asking price stays anchored to data that aged out weeks earlier.

We watch for that turn and reprice early when we see it. Not because we predict anything. Because when you are in enough transactions at once, you feel the floor shift before anyone writes it down. Showings thin out. The second call from a buyer's agent never comes. Offers start arriving with more conditions attached.

None of that is in a report. All of it is information.

A seller cannot see this, and that is not a knock on sellers. You sell a house every eight or ten years. That is not a sample size. A national headline about mortgage rates tells you nothing about what a specific street in Watertown did last month.

What does marketing actually mean in real estate?

If I had a nickel for every time someone told me marketing means taking photos and putting a listing in MLS, I would have retired before I wrote this.

The American Marketing Association defines it as the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large.

Note the word "processes." Note "creating." Photography is part of communicating, and it is close to the last thing that happens.

The first marketing decision is price. The second is condition. What is this home worth as it stands today, what should we do to it before anyone sees it, and which of those repairs actually return more than they cost. Some do. Plenty do not, and talking a seller out of a project is often worth more than talking them into one.

Then positioning. Every house tells a different story and reaches a different buyer. A 1920s colonial with original woodwork and a 2005 colonial with central air are not sold the same way, to the same person, with the same photographs or the same words. Someone buying their first home is weighing different things than someone buying a second home on the Cape. Our job is to figure out who this house is genuinely right for and then make sure that person cannot miss it.

That is what produces a listing that sells in the top row of that table instead of the bottom one.

A note on doing this yourself with AI. A homeowner can now generate listing copy, run a market analysis and build a marketing plan without hiring anyone. Some of that output is good and I use these tools daily. What they cannot do is stand in your kitchen and tell you it is the thing capping your price. They cannot know the sale four streets over had a finished basement yours does not. And they will never volunteer that they are wrong, which is the expensive part.

A warning from someone who uses these tools daily. I regularly catch two things. The first is language that would create real legal exposure if it went out. The second is analysis that is simply wrong, usually because of what got measured. Housing math depends entirely on the time period, and if the window is a trailing ninety days pulled against a calendar quarter, or a winter stretch compared against a spring one, the result can be off by a wide margin and still look authoritative. It is confident either way. Having someone who can catch that quickly will save you time and money.

What does a listing agent actually do when an offer comes in?

Most sellers have a fair sense of what their home is worth. What they do not have is a read on what each buyer is actually solving for.

An offer is not only a number. It is a number attached to a closing date, a financing type, a deposit, an inspection window and a set of contingencies. Every one of those carries value and every one of them is tradeable.

The contingencies in particular are subjective. A buyer and a seller will put very different monetary weight on the same term, and neither of them is wrong. A thirty day financing contingency might be worth almost nothing to a buyer with a strong lender and a great deal to a seller who has already committed to a closing date on the other end. Knowing where those weights sit on both sides of the table is how terms get traded for price. A buyer who needs sixty days and a buyer who can close in three weeks are worth different amounts to a seller who has already committed to their next house. The highest number on the page is frequently not the best offer in front of you, and telling the difference is the job.

The harder part is reading intent. When a buyer's agent asks about your timeline, that question carries information. When an offer shows up with a short inspection window and an oversized deposit, that carries information. When the same agent calls twice in one afternoon, that carries information. None of it is written down anywhere.

There is also a plain asymmetry worth naming. Across the table is someone who negotiates for a living, representing a buyer whose interests run directly against yours.

Think of it the way you would think about attorneys. The lawyer on the other side of a case is not your enemy and is not doing anything improper. They are doing their job, which is to get the best outcome for the person who hired them. It only feels adversarial because you are the person on the other end of it.

A buyer's agent is the same. They are advocating hard for their client, exactly as they should, and exactly as I do for mine. Nobody would walk into a courtroom without their own attorney and assume the other side would look out for them. The question is simply whether you have someone doing that job on your side of the table.

How does a good listing agent keep a deal from falling apart over small things?

I have watched a transaction nearly collapse over a toaster.

I have watched siblings take less money because taking less hurt a family member more than it hurt them. I have watched a sale die over a thousand dollars on a house worth several hundred times that.

None of those are stories about unreasonable people. They are stories about reasonable people at the most loaded financial moment of their adult lives, which is exactly when judgment gets worst. Everybody believes they will be the rational one. Most people are, right up until the inspection report lands on a Thursday afternoon.

The job in that moment is not telling someone their reaction is wrong. It is hearing it out completely, and then walking the decision back to arithmetic. Yes, the request is annoying. Yes, they are probably asking for more than they need. Here is what saying no costs you. Here is what saying yes costs you. Here is what happens if this dies and we are relisting in November.

Underneath that is something harder to describe. A transaction has four or five people in it with genuinely different goals, and a good listing agent is managing all of them at once. The seller who is grieving the house. The buyer who is frightened of the number they just committed to. The agent across the table who needs a win for their own client. Two attorneys with different reads on the same paragraph. My job is to keep all of that pointed at a closing table, and to make a negotiation that could easily turn contentious look like it was never in doubt.

That skill does not appear anywhere in a sales statistic. There is no column for it.

Where it does show up is reputation. When a buyer's agent sees my name on a listing and knows their client will be dealt with fairly, their offer comes in cleaner and their advocacy comes in calmer. That is worth real money to my sellers, and it is built one transaction at a time over years. It is also the reason I will not burn an agent over a small thing to win a small thing.

Who manages everything that happens after the offer is accepted?

More than most sellers expect, and most of it depends on people who do not work for you.

The buyer typically has contractual rights to revisit. The home inspector needs access, and so do any contractors called back for estimates. The appraiser comes on the lender's timeline. Smoke and carbon monoxide detectors need certification from the local fire department, scheduled around their availability. Final utility readings have to be taken and settled. Documents move between two attorneys, a lender and a closing agent, each with their own deadlines.

Our team runs that sequence continuously. We know which fire departments book two weeks out and which will fit you in. We know which lenders order the appraisal immediately and which sit on it. We know what an inspection report looks like when the buyer is building a case for a credit versus when they are genuinely alarmed, and we know how to respond differently to each.

That is what a system is. Not a folder of checklists, but a set of deadlines somebody is actively watching while you are living in the house and packing it.

A seller doing this alone is learning it once, under time pressure, with no ability to tell whether a delay is routine or a warning sign. A missed smoke certification does not cost you the transaction. It can cost you the closing date, which takes the moving truck with it, then the rate lock, then the purchase waiting on the other end.

How does a listing agent keep a seller out of legal trouble?

Real estate law and practice have moved more in the last three years than in the twenty before it. Buyer agency agreements work differently. Disclosure practices have tightened. How compensation gets discussed and documented changed outright. And every one of those changes lands on the seller, whether or not the seller has heard of them.

Here is what that looks like in practice.

This past year a buyer's agent presented an offer on one of my listings three separate times. Three times I had to tell them that my seller could not accept it.

The offer stated, in writing, that their buyer intended to waive the home inspection. As of October 15, 2025, a Massachusetts seller cannot accept a contract to purchase where the buyer has communicated an intent to waive their right to a home inspection. The regulation is 760 CMR 74.00, adopted under the Affordable Homes Act, and it applies to contracts entered into on or after that date.

My seller had no idea. There is no reason they would. They sell a house once a decade and this rule was ten months old.

Had we accepted that offer, we would have been on the wrong side of a consumer protection regulation before an attorney was ever involved in the transaction, and the exposure would have run to my seller and to me. Instead it got caught at the offer stage, where fixing it cost nothing but a phone call.

The part I keep coming back to is what it says about the two agents in that story. The buyer's agent nearly cost their own client a house they wanted, three times, over a rule they should have known. I caught it because reading the regulations is part of what my sellers are paying for. Same transaction, same paperwork, completely different outcome depending on who is standing on each side.

Separately from any of that, Massachusetts generally follows caveat emptor for sellers, which surprises people. A private seller is not required to volunteer everything they know. But the limits are real. Saying something untrue is a different matter than staying silent, and so is taking steps that hide a known defect. Pre-1978 properties carry obligations under the Massachusetts Lead Law. Properties on private septic carry Title 5 obligations. Smoke and carbon monoxide certification is a condition of transfer.

Sellers going it alone often reason that the buyer's agent runs the process and an attorney drafts the documents, so the exposure is covered. The buyer's agent owes their duty to the buyer. They may be perfectly professional and their obligation still points away from your interests. Your attorney drafts and reviews contracts, and a good one is essential, but most are not walking your property, weighing your disclosure obligations against what they see there, or catching a defective offer before it gets signed. That is a different engagement.

The space between those two roles is where an unrepresented seller stands by themselves.

General information, not legal advice. Talk to a Massachusetts real estate attorney about your specific situation.

What does a week on the market actually cost?

Sellers think hard about the sale price. Almost nobody runs the math on time.

Holding a $1,000,000 Greater Boston home costs roughly $238 a day in mortgage interest at current rates on 80% financing, property taxes at a typical Massachusetts rate, insurance, utilities and ordinary upkeep. On a $1,500,000 home it is about $348 a day.

That is $1,666 a week. A listing that takes an extra month to sell has spent about $7,100 getting there.

But the reduction is the bigger number, and this is the comparison worth sitting with:

A seller could carry that house for seven months and still come out ahead of a single 5% cut. Nobody wants to do either. The point is that the cut is not the cheap option just because it feels like the fast one.

Which brings it back to where this article started. The 1% of sellers who reduced their price were the ones who got the launch right. The 71% were the ones who did not, and by the time they found out, both doors were expensive.

Our numbers

My father got into this business in 1978. My grandfather joined him about a decade later, after retiring as a Fire Captain from the Watertown Fire Department, and worked listings into his eighties. I am the third generation, which either means I know what I am doing or that I lacked imagination as a young man.

Here is how our listings compare to the market they sold in.

Our sellers get an offer in about half the time the market takes. Five days may not sound like much until you look back at that first table and notice what happens to the homes that keep going.

Our team has closed over 1,000 transactions since 2000, according to MLS PIN.

The question is not whether to hire an agent

It is which one, and that gap is wider than most sellers realize.

This is not just my opinion. Barwick and Pathak, publishing in the RAND Journal of Economics in 2015, studied the brokerage industry in Greater Boston specifically. They found that low barriers to entry pulled a wave of new agents into the market and that average service quality fell as a result. They also concluded that better public information about individual agent performance would make the market work better for consumers.

Anyone who has been in this business a decade already knew that. It is useful to have it measured.

It also means that a statistic about what "agents" do on average tells you very little, because that average includes a lot of people selling two houses a year. You are not hiring the average. You are hiring one person.

So ask them for their numbers. Here are the questions I would want a seller to ask me:

• How many listings did you take in the last two years?
• What is your median days to offer, and what was the market's over the same period?
• What share of your listings sold at or above their original asking price?
• Walk me through a listing that did not go the way you planned.

Mine are in this article. I will send the underlying data to any seller who asks.

What I actually do

I educate you before the decisions arrive, and I take the friction and the emotion out of them when they do, so the financial choice in front of you is clear.

That means you understand the market before we pick a price, not after. It means you know what the inspection is likely to turn up before the inspector shows up. It means when an offer comes in with terms you have never seen, somebody at the table has seen them four hundred times.

One in four sellers in our towns had to reduce their price last year. Among the ones who sold in the first two weeks, it was one in a hundred.

The difference between those two groups was almost never the house. It was the two weeks of work that happened before anybody saw it.

Thinking about selling in 2027? I am glad to run these numbers on your house rather than the median. No pressure and no obligation, and if the answer is that you should wait, I will tell you that too.

SOURCES

• MLS Property Information Network. 3,071 residential sales settled in Arlington, Belmont, Cambridge, Newton, Waltham and Watertown, trailing 365 days. Residential property types only, deduplicated by property.
• DelRose McShane Team transaction records, MLS PIN, 2007 through 2026.
• Barwick, P. J., & Pathak, P. A. (2015). The Costs of Free Entry: An Empirical Study of Real Estate Agents in Greater Boston. RAND Journal of Economics, 46(1), 103-145.
• American Marketing Association, definition of marketing.
• Carrying cost model: 30-year fixed at current rates on 80% financing, Massachusetts property tax at typical municipal rate, insurance, utilities and 0.75% annual maintenance.

This article is general information and is not legal, tax or financial advice. Market data describes past transactions and does not predict future results. Real estate values can decline. Consult a Massachusetts real estate attorney regarding your disclosure obligations and contract terms, and your own advisors before making a decision to sell.